Performance degradation - [计] 性能退化，怎么读怎么用

🧩 词语组成解析

performance [pɚ'fɔrməns]

n. 表演;演技;表现;执行;

per完全+form形状+ance表名词→ perform从头到尾做出形状=表演+ance表名词 → 表演

degradation [,dɛɡrə'deʃən]

n. 堕落;潦倒;毁坏;恶化;

de向下+grad步，级+ation名词后缀→向下降级→ 堕落，退化，降级，贬黜

How do you say that in English?

那个用英语怎么说？

The student is busy studying math.

这个学生忙于研究数学。

It is now being sent to his home by train.

现在正用火车给他运回家来。

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